Senator WONG (South Australia—Leader of the Opposition in the Senate) (15:00): Mr President, I ask a further supplementary question. I note the minister's refusal to give an undertaking to protect the four pillars policy. Is the minister aware that eroding competition in the banking industry will put upward pressure on interest rates? Has the government's budget of broken promises not already hit low- and middle-income earners hard enough without the government now moving to restrict competition in the banking sector?